D defs.my
Entry 1 sense Webster, 1913

Mountain specter

· Moun·tain spec·ter · IPA
01 An optical phenomenon sometimes seen on the summit of mountains (as on the Brocken) when the observer is between the sun and a mass of clou…
  1. 1.
    An optical phenomenon sometimes seen on the summit of mountains (as on the Brocken) when the observer is between the sun and a mass of cloud. The figures of the observer and surrounding objects are seen projected on the cloud, greatly enlarged and often encircled by rainbow colors.